Four starters scored in double figures for the Wildcats (20-6,10-3 Pac-12), led by Rawle Alkins with a game-high 20 points. Freshman Deandre Ayton added 18 while Dusan Ristic chipped in a 16-point, 11-rebound double-double. Allonzo Trier contributed 14, including a 3-pointer with 3:17 left to give Arizona a 73-59 lead.

Chimezie Metu paced the Trojans (17-9, 8-5) with 18 points, while Jordan McLaughlin scored 16 and Nick Rakocevic tallied 12 points. Rakocevic grabbed nine rebounds, but fouled out after playing just 25 minutes.

USC could have tied the Wildcats for first in the conference with a win, but instead ended up getting swept on its Arizona road trip. After allowing the game's last nine points Thursday night in a 80-78 setback against Arizona State, the Trojans permitted Arizona to hit 59.3 percent of its shots in the second half.

Metu hit a jumper with 16:19 left in the game to cap a 10-4 USC run and tie things at 41. However, Ayton dunked 23 seconds later to give the Wildcats the lead for good.

Arizona gradually pulled away over the last 13:05 after McLaughlin made a jumper to pull the Trojans within 48-47. The margin reached 10 when Ristic canned a jumper at the 6:00 mark to make it 68-58 and eventually reached 19 in the final 90 seconds.

The Wildcats led most of the first half, although the teams were never more than five points apart over the first 12 1/2 minutes. Ayton's jumper with 1:23 left in the half gave Arizona its first double-figure lead at 37-27, but Derryck Thornton canned four free throws to pull USC within 37-31 at halftime.

The Trojans converted just 44.4 percent of their field goal tries and were dominated on the glass to the tune of 40-22.

--Field Level Media